DS3231 Real Time Clock Memory Module with out Battery Cases Compatible With Arduino Also check micro coreless motors

Also check micro coreless motors with propellers

This compact 2g gsm module is suitable for applications such as remote monitoring

The Arduino mega has many more i/o pins (54 digital pins and 16 analog pins)than a standard Arduino

Supporting dual 4K micro-HDMI displays

and the overall length is 65mm

DS3231 Real Time Clock Memory Module with out Battery Cases Compatible With Arduino Also check micro coreless motorsDS3231 Real Time Clock Memory Module with out Battery DS3231 is a low cost, extremely accurate I2C real time clock (RTC), with an integrated temperature compensated crystal oscillator (TCXO) and crystal. Real time clock generator seconds, minutes, hours, day, date, month and year timing and provide valid until the year 2100 leap year compensation DS3231 available in commercial and industrial temperature ranges, using a 16 pin 300mil SO package. DS3231